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A Study of the Difference of Low-frequency Oscillation Between the Typical Flood/Drought Years in Changjiang Valley
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摘要: 通过对1980年和1985年大气30—60天低频流场的分析，发现长江流域典型旱涝年在低频流场的配置和低频波的传播方向上均有明显差异。涝年（1980）低频振荡明显，其传播特征与正常年份相同，而旱年（1985）则呈相反趋势。Abstract: By analysis of streamline field with 30—60 day low-frequency for the anomalous flood year (1980) and drought year (1985) over Changjiang valley during the Meiyu season, it is found that there exists a distinct difference for the pattern of low-frequency streamline field and its propagation direction. The low-frequency wave is obvious and its propagation feature in the flood year is consistent with that in the normal year, but opposite in drought year.
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